sds.c: avoid leaking tokens when seplen < 1 || len < 0
sds.c: avoid leaking tokens when seplen < 1 || len < 0

thedrow/hiredis,owent-contrib/hiredis,chenlicong0821/hiredis,jinguoli/hiredis,redis/hiredis,thomaslee/hiredis,hidebug/hiredis,redis/hiredis,hidebug/hiredis,liulingfree/hiredis,rangan337/hiredis,chenlicong0821/hiredis,redis/hiredis,yiliaofan/hiredis,tattsun/hiredis,badboy/hiredis-win,picrin/redisSamples,jinguoli/hiredis,jqk6/hiredis,owent-contrib/hiredis,olgeni/hiredis,nokiddin/hiredis,arinal/hiredis,Microsoft/hiredis,Yhgenomics/hiredis,xjzhou/hiredis,liulingfree/hiredis,charsyam/hiredis,galdor/hiredis,Yhgenomics/hiredis,jinguoli/hiredis,rangan337/hiredis,Microsoft/hiredis,galdor/hiredis,tattsun/hiredis,olgeni/hiredis,xjzhou/hiredis,h1048576/hiredis,charsyam/hiredis,thomaslee/hiredis